Why the Rittenhouse trial got fiery after he took the stand

It was a fiery day in the courtroom in Kenosha, Wisconsin, at Kyle Rittenhouse's trial for the murder of two men and the shooting of a third. Rittenhouse took the stand in his own defense, breaking down as he described the lead up to the fatal shooting of Jacob Rosenbaum, who was unarmed. The defense moved for a mistrial over some of the prosecution's cross-examination. John Yang reports.